Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a08a144c5133d74…

MALICIOUS

PDF

347.8 KB Created: 2015-08-19 16:17:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 525e066b148e756407613eb8f62866b0 SHA-1: 7f3a1590c0bd0722484c2750fb3654ba01711124 SHA-256: 7a08a144c5133d745d32fdb345cd96f044c85dcb4176303be84d920028e8e8a5
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the exact lure. The file was generated by wkhtmltopdf, which is sometimes used to package malicious content.

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D1%82%D0%B1%D0%B8%D0%BB%D0%B8+%D0%B8+%D0%B6%D0%B5%D0%BA%D0%B0+%D0%BA%D1%82%D0%BE+%D1%82%D0%B0%D0%BC&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626643_skachat_standartnuye_kartuy_dlya_warcraft_3_frozen_throne.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627039_city_car_driving_133_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626632_sanminimum_voprosuy_i_otvetuy.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000529c9.bin
290b4dac78ee009fa8eace8fed4c85efddc999831227c5030f19fe1cef04d6ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x529C9 7612 bytes
font_01_sfnt_off00054010.bin
a5bb872ba1f0c4890466229cda9886dd24b258122589cb1f1f849753bd387274		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54010 15964 bytes

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